The InvalidOperationException there gets thrown when trying to spawn a thing that is already spawned. Essentially adding a duplicate, except with me not writing down the usual details into the error message. Looking at the calling method on sos2's github, the specific SpawnSetup there runs exactly after logging an error about failing to despawn. This previous despawn error would have the more useful data. It could've even been something else entirely not seen here affecting despawning too and simply randomly not happening on the 2nd attempt with fridge removed

Well the only thing I tried was removing the fridge mod, and it was the difference of working / not working so I have no idea what other thing could be, as for info, that was all there is, the game didn't long anything else

I got this error from time to time, so it looks like it isn't linked with any storage mods or anything, might be Perfomance Fish causing trouble then, since it began the same day I added it.

This is is when launching a ship.

Error spawning ship hull: Object reference not set to an instance of an object
[Ref D20AEF25]
at Verse.GridsUtility.GetThingList (Verse.IntVec3 c, Verse.Map map) [0x00000] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
at LifeSupport.LifeSupportComp+<>c__DisplayClass2_0.<ReceiveCompSignal>b__0 (Verse.IntVec3 cell) [0x00000] in <51111dcffb1e46c5b40d5478673ae551>:0
at System.Linq.Enumerable+SelectManySingleSelectorIterator`2[TSource,TResult].MoveNext () [0x00051] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at System.Linq.Enumerable+WhereEnumerableIterator`1[TSource].MoveNext () [0x0004e] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at System.Linq.Set`1[TElement].UnionWith (System.Collections.Generic.IEnumerable`1[T] other) [0x00018] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at System.Linq.Enumerable+DistinctIterator`1[TSource].FillSet () [0x0000b] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at System.Linq.Enumerable+DistinctIterator`1[TSource].ToList () [0x00000] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at System.Linq.Enumerable.ToList[TSource] (System.Collections.Generic.IEnumerable`1[T] source) [0x0001f] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at LifeSupport.LifeSupportComp.ReceiveCompSignal (System.String signal) [0x00077] in <51111dcffb1e46c5b40d5478673ae551>:0
at Verse.ThingWithComps.BroadcastCompSignal (System.String signal) [0x0002b] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
at RimWorld.CompPowerTrader.set_PowerOn (System.Boolean value) [0x0012b] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
- POSTFIX OskarPotocki.VanillaFactionsExpandedMechanoids: Void VFEMech.PowerOn_Patch:Postfix(CompPowerTrader __instance)
at RimWorld.CompPowerTrader.LostConnectParent () [0x00006] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
at RimWorld.CompPower.PostDeSpawn (Verse.Map map) [0x0004e] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
at Verse.ThingWithComps.DeSpawn (Verse.DestroyMode mode) [0x0002c] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
- POSTFIX XFMParmor_HarmonyPatch: Void MParmorLibrary.Patches.StoreProjectiles+ProjectilesDeSpawn_PostFix:Postfix(ThingWithComps __instance)
at Verse.Building.DeSpawn (Verse.DestroyMode mode) [0x00035] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
- PREFIX ShipInteriorMod2: Boolean SaveOurShip2.DoPreDeSpawn:PreDeSpawn(Building __instance, DestroyMode mode)
at SaveOurShip2.ShipInteriorMod2.MoveShip (Verse.Building core, Verse.Map targetMap, Verse.IntVec3 adjustment, RimWorld.Faction fac, System.Byte rotNum, System.Boolean includeRock, System.Boolean clearArea) [0x010f4] in <2df847f03d034e0fa0612e7c7e88a026>:0

UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Warning (string)
SaveOurShip2.ShipInteriorMod2:MoveShip (Verse.Building,Verse.Map,Verse.IntVec3,RimWorld.Faction,byte,bool,bool)
SaveOurShip2.ShipInteriorMod2:LaunchShip (Verse.Building)
SaveOurShip2.LaunchShipToSpace:Prefix ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:RimWorld.ShipCountdown.CountdownEnded_Patch1 ()
RimWorld.ShipCountdown:ShipCountdownUpdate ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Root_Play.Update_Patch1 (Verse.Root_Play)

----------------------And the next one---------------------------------------------------------------------

Root level exception in Update(): System.InvalidOperationException: Operation is not valid due to the current state of the object.
[Ref 8C66EEC8]
at FisheryLib.Collections.IndexedFishSet`1[T].Add (T item) [0x00019] in <a3e8b53a325844e98f60ef692520ce62>:0
at PerformanceFish.Listers.Buildings+AddPatch.Postfix (Verse.ListerBuildings __instance, Verse.Building b) [0x0003f] in <66cfa82fbdc943bd9afc22f2027e1965>:0
at Verse.ListerBuildings.Add (Verse.Building b) [0x000b3] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
at Verse.Building.SpawnSetup (Verse.Map map, System.Boolean respawningAfterLoad) [0x0006b] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
- POSTFIX ShipInteriorMod2: Void SaveOurShip2.DoSpawn:OnSpawn(Building __instance, Map map, Boolean respawningAfterLoad)
at SaveOurShip2.ShipInteriorMod2.MoveShip (Verse.Building core, Verse.Map targetMap, Verse.IntVec3 adjustment, RimWorld.Faction fac, System.Byte rotNum, System.Boolean includeRock, System.Boolean clearArea) [0x011cf] in <2df847f03d034e0fa0612e7c7e88a026>:0
at SaveOurShip2.ShipInteriorMod2.LaunchShip (Verse.Building core) [0x00135] in <2df847f03d034e0fa0612e7c7e88a026>:0
at SaveOurShip2.LaunchShipToSpace.Prefix () [0x0002f] in <2df847f03d034e0fa0612e7c7e88a026>:0
at RimWorld.ShipCountdown.CountdownEnded () [0x00011] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
- PREFIX ShipInteriorMod2: Boolean SaveOurShip2.LaunchShipToSpace:Prefix()
at RimWorld.ShipCountdown.ShipCountdownUpdate () [0x00028] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
at Verse.Root_Play.Update () [0x00021] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
- POSTFIX com.vanillageneticrimexpanded: Void GeneticRim.Root_Play_Update_Patch:TickCountDown()
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch3 (string)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Root_Play.Update_Patch1 (Verse.Root_Play)

Well, now it was the Life support ssystem from life support continued 1.1+, removing it let me launch, bit werd but ok, maybe something with the tick it does?

Originally posted by BRSaura:

Well, now it was the Life support ssystem from life support continued 1.1+, removing it let me launch, bit werd but ok, maybe something with the tick it does?

Found the same issue to be true, thanks for the info.

Originally posted by BRSaura:

Well, now it was the Life support ssystem from life support continued 1.1+, removing it let me launch, bit werd but ok, maybe something with the tick it does?

Can I get a link to that?